Peristrophic-wing air craft



FIG. 1 is a perspective view of a peristrophic-wing air craft showing my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a front elevation view thereof, with thrust-flaps in extended condition;

FIG. 5 is a front elevation view thereof, with thrust-flaps in tilted condition;

FIG. 6 is a top plan view thereof;

FIG. 7 is an enlarged fragmentary side elevation view thereof showing in greater detail the thrust-flaps in extended condition;

FIG. 8 is an enlarged fragmentary side elevation view thereof, showing in greater detail the thrust-flaps in tilted condition;

FIG. 9 is a bottom plan view thereof. 

The ornamental design for a peristrophic-wing air craft, substantially as shown and described. 